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CPU Nodes

Euler contains several different CPU models. The following table lists the currently available CPU nodes, their specifications, and the generation they belong to.

Operational nodes

Euler VI Euler VII (phase 1) Euler VII (phase 2) Euler VIII Euler IX (phase 1) Euler IX (phase 2) Euler IX (bigmem)
Nodes 216 292 248 192 192 180 32
Sockets/Node 2 2 2 2 2 2 2
Cores/Socket 64 64 64 64 96 96 96
Threads/Core 1 1 1 1 1 1 1
CPUs AMD EPYC 7742 AMD EPYC 7H12 AMD EPYC 7763 AMD EPYC 7742 AMD EPYC 9654 AMD EPYC 9654 AMD EPYC 9654
Base CPU Clock 2.25 GHz 2.60 GHz 2.45 GHz 2.25 GHz 2.40 GHz 2.40 GHz 2.40 GHz
Max. CPU Boost Clock 3.4 GHz 3.3 GHz 3.5 GHz 3.4 GHz 3.7 GHz 3.7 GHz 3.7 GHz
RAM 512 GB
3'200 MHz
256 GB
3'200 MHz
256 GB
3'200 MHz
512 GB
3'200 MHz
384 GB
4'800 MHz
384 GB
4'800 MHz
768 GB
4'800 MHz
Local scratch 900 GB 340 GB 340 GB 1.8 TB 1.8 TB 1.8 TB 1.8 TB
Network 100 Gb/s InfiniBand HDR 100 Gb/s InfiniBand HDR 100 Gb/s InfiniBand HDR 100 Gb/s Ethernet 100 Gb/s InfiniBand HDR 100 Gb/s InfiniBand HDR 100 Gb/s InfiniBand HDR
Fat nodes
(2 TB)
Fat nodes
(3 TB)
Fat nodes
(4TB)
Nodes 13 8 2
Sockets/Node 2 2 2
Cores/Socket 64 96 64
Threads/Core 1 1 1
CPUs AMD EPYC 7742 AMD EPYC 9654 AMD EPYC 7742
Base CPU Clock 2.25 GHz 2.4 GHz 2.25 GHz
Max. CPU Boost Clock 3.4 GHz 3.7 GHz 3.4 GHz
RAM 2 TB
3'200 MHz
3 TB
4'800 MHz
4 TB
3'200 MHz
Local scratch 900 GB 7 TB 900 GB
Network 100 Gb/s Ethernet 100 Gb/s Ethernet 100 Gb/s Ethernet

Decommissioned nodes

Euler I Euler II Euler II Euler III Euler IV Euler V
Nodes 448 768 4 1'215 288 216
Sockets/Node 2 2 4 1 2 2
Cores/Socket 12 12 16 4 18 64
CPUs Intel Xeon E5-2697v2 Intel Xeon E5-2680v3 Intel Xeon E7-8867v3 Intel Xeon E3-1585Lv5 Intel Xeon Gold 6150 Intel Xeon Gold 5118
Base CPU Clock 2.7 GHz 2.5 GHz 2.5 GHz 3.0 GHz 2.7 GHz 2.3 GHz
Max. CPU Boost Clock 2.5 GHz 3.3 GHz 3.3 GHz 3.7 GHz 3.7 GHz 3.2 GHz
RAM 64-256 GB 64-512 GB 2'072 GB 32 GB 192 GB 96 GB
RAM clock speed 1'866 MHz 2'133 MHz 2'133 MHz 2'133 MHz 2'666 MHz 2'400 MHz
Local scratch 340 TB
Network 40/10 Gb/s Ethernet 100 Gb/s InfiniBand EDR
Operational years 2014 - 2018 2015 - 2020 2015 - 2020 2016 - 2022 2017 - 2022 2018 - 2023